COD- Chapter 7: Membrane Structure and function

Open Ended

What would be the expected fatty acid composition of the plasma membrane in an animal living in the North Pole?

Multiple Choice

As a person becomes very dehydrated, the concentration of water in her blood decreases.

In which direction will water move across the plasma membranes of her blood cells?

• inside to outside

• outside to inside

• move equally across the membrane

Multiple Choice

What will happen to the volume of the cells as a consequence?

• remains the same

• increases

• decreases

Multiple Choice

You were cleaning out the aquariums in the biology lab and you accidentally placed the freshwater fish in:

the saltwater tank

What will happen to the cells of these fish?

• swell

• stay the same

• shrink

Multiple Choice

You were cleaning out the aquariums in the biology lab and you accidentally placed the freshwater fish in:

Distilled water tank

What will happen to the cells of these fish?

• Swell

• Shrink

• Stay the same

Multiple Choice

In some countries, human waste is used as a fertilizer. If produce is grown in this type of fertilizer, it is possible that it will be contaminated with the protozoan that causes amoebic dysentery. One method of removing the protist without ruining the food is to place the produce in a 5% salt solution.

Is the 5% salt solution............ relative to the protist's cell

• Isotonic

• Hypotonic

• hypertonic

Multiple Choice

The protist will die because

• it swells and bursts open

• It shrinks

• stays the same

Match

Match the following

• Diffusion/osmosis/facilitated diffusion

• Na/K pump

• exocytosis

• pinocytosis

• phagocytosis

passive transport

active transport

bulk transport secretion

internalization of fluids

internalization of solids

• passive transport

• active transport

• bulk transport secretion

• internalization of fluids

• internalization of solids